 EPOD - a service of USRA

The Earth Science Picture of the Day (EPOD) highlights the diverse processes
and phenomena which shape our planet and our lives. EPOD will collect and
archive photos, imagery, graphics, and artwork with short explanatory
captions and links exemplifying features within the Earth system. The
community is invited to contribute digital imagery, short captions and
relevant links.


 Horn Park Quarry Ammonites

   February 10, 2021

    Ammo5

   Photographer:  Michela Meda
   Summary Author:  Michela Meda

   The fossils seen above are  ammonites from  Horn Park Quarry,
   England. These relatives of the current  nautilus thrived for about
   140 million years in the  Jurassic and  Cretaceous Periods.
   Ammonites are characterized by a distinctive  outer shell composed
   mainly of  aragonite and  conchiolin and internally divided by
    septa into  different chambers filled with gas and liquid to
   control the animal's buoyancy. The animal itself occupied the final
   chamber. Horn Park Quarry was once a working quarry and is now the
   smallest National Nature Reserve in Britain. Photo taken December 13,
   2020.
     * Horn Park Quarry National Nature Reserve, England Coordinates:
        50.81632, -2.77166

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    Horn Park Quarry Ammonites  An Unusual Arch  Cerro Ventana,
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    More...

Geology Links

     *  Earthquakes
     *  Geologic Time
     *  Geomagnetism
     *  General Dictionary of Geology
     *  Mineral and Locality Database
     *  Mohs Scale of Mineral Hardness
     *  This Dynamic Earth
     *  USGS
     *  USGS Ask a Geologist
     *  USGS/NPS Geologic Glossary
     *  USGS Volcano Hazards Program

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   Earth Science Picture of the Day is a service of the  Universities
   Space Research Association.

https://epod.usra.edu
 
